Driving mechanism for paper-refining engines.



PAIENTED JUNE '12, 1906.

. E. C. CROGKE'R. DRIVING MECHANISM FOR PAPER RBFINING ENGINES.

' APPLIOATION FI LE 1230.9, 1901. RENEWED FEB. 21, 1905.

- mvamoa Y BY ' ATTORNEYS UNITED sr rss PATENT orrron.

EBEN c. CROOKER, or BRIDGEPORT, CONNECTICUT, ASSIGNOR, BY MESNE ASSIGNMENTS, TO HORACE A. MOSES, OF MITTINEAGUE, MASSACHU- SETTS;

DRIVI-NGV'MECHANISM son IPAPER-REFININVG ENGINES.

Specification of Letters Patent.

Patented June 12, 1906;

Application filed December-9, 1901'- ,Eenewed February 21, 1905. Serial No. 6,776

To all whom it may concern/m Be it known that I, EBEN C. CROOKER, of

Bridgeport, in the county of Fairfield and- State of Connecticut, have invented a certain new and useful Driving Mechanism for Paper-Refining Engines, of which the following is a specification.

This invention relates to .im rovements in paper-refining machines, an particularly paper-refining machines comprising a sta-' tionary' shell, an endwise-adjustable core rotating therein, and a driving mechanism for rotating said core, said shell and core being provided with coacting cutting-knives which while the core rotates comminute or grind u the materialcontained in the shell and whic ployed consists of a belt-and-pulley construction connected with a suitable source of power and having its driven ulley splined or similarly connected with t 1e shaft of the core, and owing to the lateral pull exerted by the belt on this driven pulley,=and therefore on the core-shaft, the latter and 'the core are displaced laterally, so that the cutting-knives of the core do not coact uniformly at all points with the cutting-knives of the shell in grinding the stock, the'working efiiciency of the engine being thus materially lessened.

Again, when the cutting-core and its shaft.

are thusdisplaced from theirnormal position a binding action takes lace between them and their bearings Whic prevents the properoperation of the mechanism as a whole and particularly the mechanism for giving the core the endwise movement of adjustment heretofore referred to. The present invention provides a driving mechanism for the core which, in addition to the advantages of simplicit in construction. and efiectiveness and dura ility in use, hasthevery important advantage that it avoids entirely thelateral digplacementof the core and its shaft and the efects just referred to resulting from suchdisplacement.

elevation, partly in section, of a paper-refining engine of the type referred to, showing the present improvements, certain the construction being broken away or illustrative purposes.

Referring now to said drawing, 0, indicates a support or base, which maybe of any usual or desired construction, but which in the best constructions is, as shown, of dimensions sufficient to support both the refining-engine and the driving mechanism. The refining-engine shown comprises the'usual outer sta- 'tionary shell A, supported in any suitable 7o manner, as by standards, rising from the base a, and'theusual cutting core or plug a, which is'mounted to rotate within the shell A. I This crtting core or plug is mounted on a shaft a which, with the plug, is movable endwise or longitudinally to adjust the cut ting-surface of theocore relatively to the shell. The means for so adjusting'the core and its shaft maybe of any suitable form, such, for

example, as the usual wheel or screw device shown at A It will be understood that, when so adjusted the, core and its'shaft will be held agalnst endwise movement while rotatli llilg by this adjusting mechanism. 1 e

construction suitable for the purpose, and

this driving-motor is connected with. the shaft of the refining-engine, so that the drive of the motor on the plug-shaft shall be direct. 'The motor is, furthermore, so connected with the plug-shaft that the plug-shaft may be given the endwise or longitudinal movement before referred to relatively to the motor andits shaft.

the drawing'and is en ported in any suitablemanner, but is prefera ly sup'fp orted,as shown, on the'baseza, which, as be ore stated, is of sufficient dimensions to accommodate bothfrco the motor and the refining-engine. The motor B is, furthermore, preferably arranged in substantially axial alinement with the shaft a, and the plug a of the refining-engine, a=

- 55 In the drawing, which illustrates one embodiment of the invention, the figure is a side arts of 60 riving mechanism employed com-i 85 prises an electric motor of any form, size, and

The electric driving-motor is marked B in by thus mounting the motor its 'driveon the plug-shaft is direct and economy in power is secured,

The means .for connecting the motor with the plug-shaft,so that the plug shaft may have an, endwise or longitudinal movement relativel to the motor, consists, preferably, of a coup ing 6, which connects the contiguous ends of the plug-shaft a and the motor-shaft b, so that the said shafts rotate as one. One end of the coupling 1) is rigidly fixed to one of the shafts a b andits other end is provided with a socket of angular cross-section which is adapted to receive the end portion of the other shaft, that end of the other shaft entering the coupling being similar in oross-section to the end of the coupling which it enters; This construction permits the latter shaft to move endwise in the socket Without varying the rotation of the other shaft or- As shown,

n the motor B as the plug-shaft is moved endwise or longitudinally by the adjusting mechanism, the coupling being rigidly secured on .the motor-shaft I), though it is of course obvious. that the coupling 1) could-be secured rigidly on the shaft a and slide backward and forward on the shaft 1) on the motor.

The shafts a b are'supported by the ordinary bearings of the motor and the refinmg -engine, If desired, however, an additional bearing I) ma be provided arranged between the motor rame and the refiningengine, which bearing is or may be supported on a bracket o rising from the base or support a. p

' What is claimed is 1.111 a refining-en ine, the combination with a stationary shel of a cutting core or plug rotatably mounted within the shell, an endwise-adjustable shaft on which the plu is supported, mechanism for adjusting the plug shaft whereby eaaioe and retaining them in such position of adjustment while rotating, an electric motor, and connections between it and said plugthe latter is rotated by the motor, substantially as described.

' l 2. In a refining-engine, the combination with a stationary shell, of a cutting core or plug rotatably mounted within the shell, an endwise-adjustable shaft on which the plug is supported, mechanism for adjusting the plug and itsshaft endwise'relatively to the shell and retaining them in such position of adjustment while rotating, an electric motor arranged in substantially axial alinement with the plug-shaft and connections between it-and said plug-shaft whereby the latter is rotated by the motor, substantially as described.

3. In a refining-engine, the combination with a stationary shell, of a cutting core or plug rotatably mounted within the shell, an endwisaadjustable shaft on which the plug is supported, mechanisrnr'for adjusting the plug and its shaft endwise relatively to the shell and retaining them in such position of adjustment while rotating, an electric motor having a shaft arranged in substantial axial alinement with the plug-shaft, and a coupling connecting the contiguous ends of said shafts and permitting endwise movement of the plug-shaft relatively to the motor-shaft by the adjusting mechanism,substantially as described.

In testimony whereof I have hereunto signed my name, in the presence of two attesting witnesses, at Syracuse, in the county 2d day of May, 1901.

EBEN O. OROCKER. I

Witnesses:

, S.ADAVIS,

D. LAVINE. 

